Dynegy Inc. (Dynegy) is participating in the Wolfe Trahan & Co. Power and Gas Deep Dive Conference in Houston, Texas, on Thursday, April 11, 2013. Robert C. Flexon, President and Chief Executive Officer of Dynegy, is scheduled to deliver a presentation beginning at 2:10 p.m. Central time. The presentation slides for use in conjunction with the conference are being furnished pursuant to Regulation FD as Exhibit 99.1 to this Current Report on Form 8-K.

The presentation slides include statements intended as forward-looking statements, which are subject to the cautionary statement about forward-looking statements set forth therein. Certain of the slides also contain non-GAAP financial information. Reconciliations of these measures to the most directly comparable GAAP financial measures, to the extent available without unreasonable effort, are contained in the presentation slides. To the extent required, statements disclosing the definitions, utility and purposes of these measures are set forth in Dynegys Current Report on Form 8-K filed with the SEC on March 14, 2013.

In accordance with SEC Release No. 33-8176, the information contained in the presentation slides furnished as an exhibit hereto shall not be deemed filed for purposes of Section 18 of the Securities Exchange Act of 1934, as amended, nor shall it be deemed incorporated by reference in any filing under the Securities Act of 1933, as amended, except as shall be expressly set forth by specific reference in such a filing.